Method and apparatus of receiving signals and wireless multimode wideband receiver

Abstract

A method of receiving a target signal existing in a wideband signal. The method includes the steps of receiving the wideband signal, removing the target signal from the wideband signal to obtain an interference signal, transforming the interference signal into an inverse interference signal, and finally combining the wideband signal with the inverse interference signal to get the target signal.

Description

[0001] This application claims the benefit of Taiwan application Serial No. 95119269, filed May 30, 2006, the subject matter of which is incorporated herein by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The invention relates in general to a method and an apparatus of receiving signals and a wireless multimode wideband receiver, and more particularly to a high-efficiency method and a high-frequency apparatus of receiving signals and a wireless multimode wideband receiver. [0004] 2. Description of the Related Art [0005] Recently, the wireless communication technology is developed, with the extremely high speed, from a single analog communication system, which only can carry the basic audio and text messages in the early stage, to a digital communication system, which is complicated and can transfer a lot of multimedia messages. In addition, the diversified communication protocols are also created to satisfy the diversified communication requirements...

AI Technical Summary

Benefits of technology

[0010] The invention is directed to a method and an apparatus of receiving signals, and a wireless multimode wideband receiver, which transform an interference signal into an inverse interference signal and combine a wideband signal with the inverse interference signal to get a target signal so as to eliminate the non-linear distortion caused by the interference signal and enhance the efficiency of the wireless multimode wideband receiver.

Problems solved by technology

Recently, the wireless communication technology is developed, with the extremely high speed, from a single analog communication system, which only can carry the basic audio and text messages in the early stage, to a digital communication system, which is complicated and can transfer a lot of multimedia messages.

However, different communication standards are used in different areas, so people cannot use the single communication apparatus with the single communication standards to communicate with others all over the world.

Because the interference signal within the frequency band passes through the active device, such as the low-noise amplifier, the interference signal within the frequency band causes the non-linear distortion in the active device if the interference signal within the frequency band is strong enough.

In addition, the ideal high-frequency band pass filter cannot be easily designed, thereby bring the confusion to the engineers.

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